We study collusion among firms against imperfectly monitored environmental regulation. Firms increase variable profits by violating regulation and reduce expected noncompliance penalties by violating jointly. We consider a case of three German automakers colluding to reduce the effectiveness of emissions control technology. By estimating a structural model of the European automobile industry from 2007 to 2018, we find that collusion lowers expected noncompliance penalties substantially and increases buyer and producer surplus. Due to increased pollution, welfare decreases by € 1.57–5.57 billion. We show how environmental policy design and antitrust play complementary roles in preventing noncompliance

Natural gas has replaced coal as the dominant fuel for US electricity generation. However, utilities in regulated US states have retired coal more slowly than others. We build a structural model of rate-of-return regulation during an energy transition where utilities face trade-offs between lowering costs and maintaining and using legacy capacity. A regulated utility facing carbon taxes lowers short-run coal generation 48 percent as much as a cost minimizer would. Thirty years after a sudden energy transition, a cost minimizer has retired 71 percent more coal capacity than the regulated utility. Alternative regulations may jeopardize affordability and reliability goals during energy transitions

A large literature at the intersection of economics and finance offers prescriptions for regulating banks to increase financial stability.This literature abstracts from the discretion that accounting standards give banks over financial reporting, creating a gap between the information assumed to be available to regulators in models of optimal regulation and the information available to regulators in reality.We bridge insights from the economics, finance, and accounting literatures to synthesize knowledge about the design and implementation of bank regulation and identify areas where more work is needed.We present a simple framework for organizing the relevant ideas, namely the externalities that motivate bank regulation, the rationales for allowing accounting discretion, and the use of discretion to circumvent regulation.Our takeaway from reviewing work in these areas is that academic studies of bank regulation and accounting discretion require a more unified approach to design optimal policy for the real world

Banks play a central role in the financial system and benefit the real economy by managing risk, and providing finance to households, small and medium-sized enterprises, large corporates and governments. However, their complexity, opacity and interconnectedness can elevate bank-level and systemic risks, posing dangers to the financial system and real economy. This was evident during the global financial crisis where taxpayer funded bailouts were used to rescue ailing banks, which in turn led to an overhaul of regulation and supervision. Consequently, safeguarding bank stability and addressing systemic risks via well designed regulations is essential for ensuring economic resilience and societal well-being. This study uses a quasi-natural experimental research design in the form of the Dutch Liquidity Balance Rule (LBR) to evaluate the impacts of liquidity regulation on bank-level stability and systemic risk. Our findings show that following the introduction of liquidity regulation, the stability of Dutch banks increases significantly relative to counterparts in neighbouring countries unaffected by the regulation. The observed reduction in risk stems from improved capitalization and reduced leverage, which contribute to greater financial stability. Systemic risk also decreases. Our findings have relevance beyond our research setting for policymakers tasked with implementing and monitoring the impacts of similar forms of liquidity regulation (such as bank liquidity coverage ratios) post global financial crisis

Rapid growth of stablecoins has raised concerns about issuer default and spillover risks. To assess these risks, we model a stablecoin issuer facing persistent demand shocks. Absent regulation, the issuer holds little capital and favours interest-bearing but illiquid bonds over cash. This exposes coin-holders to default risk and poses spillovers via bond fire-sales. How can regulation mitigate these risks? Capital and liquidity thresholds can help, especially when introduced as usable buffers. The thresholds can be breached, providing flexibility. However, breaches trigger additional redemptions that discipline the issuer. The thresholds operate through asymmetric channels: the liquidity threshold raises only cash, whereas the capital threshold increases both capital and cash. Both thresholds mitigate default and spillover risks, making them substitutes when either risk is targeted separately but complements when both risks are targeted jointly. We provide a two-way mapping that helps derive capital-liquidity threshold combinations implied by chosen risk targets (and vice-versa

We examine how portfolio regulations affect risk sharing between financial institutions with market power. Unconstrained access to complete markets permits flexible exploitation of market power and induces inefficient risk sharing. Appropriate portfolio restrictions counteract this, improving liquidity and risk sharing by bundling securities with offsetting strategic incentives. However, excessive regulation can be counterproductive, destroying gains from trade. An application of our theory shows that cross-asset spillovers are critical for policy evaluation: in general equilibrium, risk sharing can improve even if certain asset-specific liquidity measures deteriorate. We also discuss the effects of asymmetric regulation for different institutions

We examine the labor market consequences of the 2020 Regulation S‐K requiring human capital disclosure in 10K filings. Using large‐sample job‐level data and a Generative Large Language Model (GLLM), we observe that public firms subject to the regulation increase their disclosure of diversity, equity, and inclusion (DEI) information in job postings relative to a matched sample of large private firms. The increase in job‐posting disclosure is more pronounced among firms facing greater external pressure to increase their workforce diversity. These findings suggest a shift in demand for diverse candidates by public firms following the regulation. Yet, consistent with short‐term inelastic labor supply, this demand shift lengthens the recruitment period, with noticeable increases in workplace gender diversity emerging one year after the regulation, particularly among firms that demonstrate a credible commitment to DEI. Our study documents how securities regulations can impact labor market practices and underscores the challenges involved in shaping workforce diversity

We study how various zoning regulations combine to affect housing supply, prices, and rents of single- and multifamily homes using novel lot-level zoning data from Greater Boston and a cross-sectional boundary discontinuity design at regulation boundaries. Looser density restrictions, alone or with other less restrictive regulations, are most effective in increasing supply and reducing per-housing-unit rents and prices. We theoretically and empirically show that restrictive zoning regulations shift housing stock towards larger units, increasing prices per housing unit. Counterfactuals imply that a recent Massachusetts law increasing building density near transit can reduce long-run rents and prices, particularly in suburbs

In April 2016, the European Union adopted the General Data Protection Regulation (GDPR), significantly expanding privacy protections for personal data handled by firms. I examine the regulation’s impact on U.S. firms’ internal information quality (IIQ) and operational efficiency. Although privacy regulations target one subset of firms’ information assets (i.e., personal data), they may spur broad improvements in firms’ information governance practices and systems, resulting in higher quality information available for decision-making and, by extension, more efficient operations. Using a difference-in-differences design, I find that U.S. firms with European operations (i.e., treated firms) exhibit improvements in IIQ around the adoption of the GDPR. Furthermore, although the GDPR’s regulatory burden is overall costly to firms, GDPR-induced improvements in IIQ contribute positively to operational efficiency. These findings highlight that privacy regulation can act as a catalyst for firms to improve IIQ, yielding operational benefits that may partially offset the regulation’s costs. Data Availability: All data are available from public sources discussed in the text

We study the impact of stricter and more harmonized banking regulation along the income distribution using household survey data for 25 EU countries. Exploiting country-level heterogeneity in the implementation of European Banking Union directives allows us to control for confounders and identify effects. Our results show that these regulatory reforms aimed at increasing financial system resilience affect households heterogeneously and result in a widening of the income distribution. These results are dependent on a country’s ex-ante regulatory stringency, and more pronounced in countries with stronger bank dependence. Furthermore, we find that more stringent regulation reduces income growth for low-income households primarily due to exits from employment, whereas affluent households tend to experience increased growth rates for employee and self-employed income